Yrs ago H&r and savage made this guns,and they were copied by some south american firms.they are a folded stock and action as you described.They unfold and the hammer is pulled back to cock the actiion then one can pull the trigger to shoot it. Clean it,and it should be ok,or spend money to have a local gunsmith clean it for you.They are showing up on the gunshows more so now days. I would believe its worth about $125-175 depending on its conditiion and how bad someone might want it.They were popular for backpackers,and behind the seat truck guns ect. have fun and hope i helped. vangunsmith